                        課程
                    
                        /前端開發
                        
                            /JavaScript
                        
                        /JavaScript入門篇

怎么不能運行？

<!DOCTYPE?html>
<html>
?<head>
??<title>?new?document?</title>??
??<meta?http-equiv="Content-Type"?content="text/html;?charset=gbk"/>???
??<script?type="text/javascript">??
???function?rec()
????{
???????var?co=confirm("新窗口是否打開?")
???????if(co==true)
???????{
???????????var?pr=prompt("確定打開網址:http://www.xianlaiwan.cn/");
???????????if(pr==true)
???????????{
??????????????Window.open(pr,'_blank','width=400','height=500','menubar=no','toolbar=no');
???????????}
???????????else
???????????{
???????????????document.write("再見");
???????????}
???????}
??????else
??????{
??????????document.write("再見");
??????}
????}
????//?新窗口打開時彈出確認框，是否打開
????//?通過輸入對話框，確定打開的網址，默認為?http：//www.xianlaiwan.cn/
????//打開的窗口要求，寬400像素，高500像素，無菜單欄、無工具欄。
????
????
??</script>?
?</head>?
?<body>?
???<input?type="button"?value="新窗口打開網站"?onclick="openWindow()"?/>?
?</body>
</html>